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Fig. 1

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Fig. 2

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Fig. 3

AS 1533

Features
automatic

Data
6.75 x 7.5''', Dm= 15.3 x 16.7mm
Do= 15.3 x 17.0mm
H= 5.3mm
F= 0.85mm
T= 1.6mm
17/21/25 jewels
f = 18000 A/h
power reserve 35h

Balance staff U2430

Stem W967

Mainspring / battery
Zf1179, 1.50 x 6.0 x 0.06 x 210mm

Hands
1.20 x 0.60mm

Comments about the data

Remarks
option: winding gear from beryllium bronze
differences not known between 1477, 1563

family/generations:
969, 981: manual wind, 18000A/h, 6.75'''
973 : manual wind, 21600A/h, 6.75'''
1477, 1563: automatic, 18000A/h, 7'''
1513 : automatic, 21600A/h, 7'''
1533 : automatic, 18000A/h, 6.75 x 7.5'''
1639: automatic, 21600A/h, 6.75 x 7.5'''
balance staffs not the same for all

Example, year: signature; shock device
1954: L4, BXW, Bulova Watch Co, 6BPA, Swiss, 17 Jewels; Kif-Flector
(Bulova 6BPA)

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft


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